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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 14 Jun 2024 09:21:44 -0700
Message-ID: <CAHk-=wigB-wVK+4=NuYJxoKLnoUXB52J5WU2hpKj2de6vGuY7g@mail.gmail.com>
Subject: Re: Linux 6.10-rc1
To: Pavel Machek <pavel@ucw.cz>, Dave Airlie <airlied@gmail.com>, 
	Jani Nikula <jani.nikula@linux.intel.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, 
	intel-gfx <intel-gfx@lists.freedesktop.org>, 
	dri-devel <dri-devel@lists.freedesktop.org>
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On Fri, 14 Jun 2024 at 02:02, Pavel Machek <pavel@ucw.cz> wrote:
>
> If I can get at least basic metric on the gpu (%idle? which process
> use how much time?), it might be feasible. Is there tool similar for
> top?

Let's bring in the actual gpu people.. Dave/Jani/others - does any of
this sound familiar? Pavel says things have gotten much slower in
6.10: "something was very wrong with the performance, likely to do
with graphics"

To bisect it, he'd need some way to judge it reasonably well and
without too much of a bias.

See

   https://lore.kernel.org/all/ZmrTZozoi0t%2Ftuva@duo.ucw.cz/

for the original report.

Thinkpad X220 - which I assume means old intel integrated GPU - at
least one listing I found for that thing is  i5-2430M, with "Intel=C2=AE HD
Graphics 3000".

                  Linus